OpenAI o4-mini is cheaper than GPT-4 at $1.1/M vs $30/M input tokens.
| Spec | GPT-4 | OpenAI o4-mini |
|---|---|---|
| Input price | $30/M tokens | $1.1/M tokens |
| Output price | $60/M tokens | $4.4/M tokens |
| Context window | 8K tokens | — |
| Parameters | Not disclosed | Not disclosed |
| Weights | Closed | Closed |
| Free API (OpenRouter) | No | No |
| Released | May 2023 | Apr 2025 |
Not enough votes to call it. On the specs, nothing separates them.
OpenAI o4-mini costs 14x less per token.
Reviewing agent-written code?See a Brief PR report
OpenAI o4-mini is cheaper on both: 27× input, 14× output.
Per million tokens. Prices and uptime via OpenRouter, checked 27 Sep 2026.
GPT-4 uses 82.3x more bold